How long does it take for marijuana to reach peak levels in the brain?

10 seconds90 seconds10 minutes90 minutes

How long after smoking marijuana are mental and physical abilities weakened?

One hourThree or four hoursTwelve to sixteen hoursTwenty-four hours

What percentage of teenagers try marijuana at least once before graduating from high school?

Less than 10%About 25%Less than 50%Almost 75%Over 90%

Which of the following statements is the most true?

Smoking marijuana has little effect on someone’s ability to drive a car.Smoking marijuana is less damaging to someone’s ability to drive a car than alcohol is.People who have been smoking marijuana do not have much trouble passing roadside sobriety (&quotdrunkenness&quot) tests.People who have been smoking marijuana have just as much trouble passing roadside sobriety (&quotdrunkenness&quot) tests as people who have been drinking.People who have been smoking marijuana have more trouble passing roadside sobriety (&quotdrunkenness&quot) tests than people who have been drinking.

How does risk of lung cancer for a marijuana smoker compare to a tobacco smoker's risk?

Marijuana causes little risk of lung cancer.Marijuana contains about 50% more of the cancer-causing chemical benzopyrene than tobacco contains.Marijuana contains about 50% less of the cancer-causing chemical benzopyrene than tobacco contains.Marijuana contains a larger number of cancer-causing chemicals in greater amounts than tobacco contains.

THC 'mimics' which neurotransmitter in the brain?

AnandamideSerotoninDopamineNorepinephrineEpinephrine

Which of the following is not true about amphetamine overdose?

It is extremely rare.It causes muscle spasms and convulsions.It can be fatal.It causes irregular heartbeat and chest pain.

Which of the following is not a short-term negative effect of marijuana use?

Does marijuana deposit tar in the lungs, the way tobacco smoking does?

No.Yes, but somewhat less than tobaccoYes, about the same as tobacco.Yes, about two times as much as tobacco.Yes, about five times as much as tobacco.

How does marijuana affect a male's ability to father a child?

It makes him impotent and sterile.It kills most of the sperm cells in his body.It decreases sperm count.It decreases sperm count and make abnormal sperm.It has no effect on a male’s ability to father a child.

Psychological addiction to using marijuanaLoss of interest in goals and life outside of marijuana useLack of sense of humor and creativity due to marijuana useIncrease in aggression, anger, and violence due to marijuana use

Which of the following signs of addiction do most marijuana abusers not suffer?

Withdrawal symptoms: heavy sweating, abdominal cramps, racing heart, nausea, and dizzinessIncreased tolerance (the need for more and more to feel the same effect)Compulsive drug craving and drug seekingContinued use despite negative consequences in life